Spoolin

Yeah, you may be right. 3 340's would be a bit better if I can get them to fit. May have my machinist buddy see if he can come up with a mount for 3 pumps on the dual hanger to replace the one on it.

staylor725

1 450 can support 600whp no problem, so I would think 2 should be good for at least 1200whp if you look at it that way. You would have a really hard time fitting 3 pumps into the stock tank, the opening on the top is not big enough. The other problems other than that is the extra wiring and heating the fuel up even more. The walbro 450's barely fit into the oem tank, but you can get them in with a little finesse.

Spoolin

Neema capped 2 450's out at 923 whp with e85 and that was at 100% injector duty, which is no bueno. LOL

Suprdave

The Base Pressure and the Pumps ability to flow at high pressure makes a HUGEEEE difference...

I'd wait for the ID Screw Pumps and Controller...Run 100psi Base Pressure and be done with it...KISS.

I wouldn't try to put 3-450s in the tank...I'd just rock what you have until the better gear comes out.

staylor725

Maybe a dual injector setup will help.

umair

Well what was your duty cycle at when you had your last setup? The previous owner of my kit made 740whp on one walbro 450.

umair

I am curious about the new walbro 485 fuel pump.
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Spoolin

On dual 255's and e85, mine made 741 whp and I believe the duty cycle was around 90%.

Spoolin

Are these screw pumps internal tank pumps? Can't find any information on them. That would be perfect and if they are compact like the walbro. I may just stick with dual 340's and see where it gets me and then upgrade when the screw pump comes out if they are an easy replacement. You know when they are due to release? I saw where a brushless pump was in the works with Bosch and ID but that was from like 2015 and not seeing any more info.

Spoolin

It would but then the manifold would need modified and the added cost of 4 more injectors would be pretty pricey.